Fringe-knotting machine.



W. E. BRASSELL.

FRINGE KNQTTING MACHlNE. AmJcATmN FILED H18. 3. 1911.

Patented Apr. 6, 1915.

4 SHEETS-SHEET 1.

Winaafiaaaw MW THE NORRIS FETERS CO., PHOTQLITHQ, WASHINGTON. D. C

W. E. BRASSELL.

FRINGE KNOTTlNG MACHINE.

APPLICATION FILED FEB. a. 1911.

l, 1 34,721 Patented Apr. 6, 1915.

SHEETS-SHEET Z.

.Z Q M W. E. BRASSELL.

FRlNGE KNOTTING MACHINE.

APPLICATION FILED FEB. 3. I911.

Patented Apr. 6, 1915.v

4 SHEETS-SHEET 3.

W. E. BRASSELL. FRINGE KNOTTING MACHINE.

APPLICATION FILED FEB. a. 1911.

1,134,721 Patented Apr. 6, 1915.

4, SHEETS-SHBET 4. 4 fg "lllllllllllllllllllllfl llllllllllllllllllllllwn HE NORRIS PETERS 60.. PHOTO-7710.. WASHINGTON, D. C.

pnrrnn srarns PATENT ent ies.

WILLIAM E. BRASSELL, or PHILADELPHIA, PENNSYLVANIA, ASSIGNOB TO E.- L. MANSURE COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION 013 ILLINOIS.

FRINGE-KNOTTING MACHINE.

Specification of Letters Patent.

Patented Apr. 6, 1915.

Application filed February 3, 1911. Serial No. 606,342.

' ments in the machine for making fringe set forth in the patent granted to C. W. Arnold April 28, 1891, No. 451,441.

The object of my invention is to improve certain parts of the machine so as to insure the proper knotting of the fringe, and to provide means for bringing the knots into proper alinement so that they Will be the same distance from the heading.

The invention also relates to other details which will be fully described hereafter.

In the accompanying drawingsFig ure l,is a plan view of a machine for making and knotting fringe, illustrating my invention; Fig. 2, is an enlarged view of a portion of Fig. 1 showing the mechanism forming a knot; Fig. 3, is a transverse sectional view on the line 33, Fig. 2; Fig. 4, 1s a view similar to Fig. 3, showing'the completion of the knot. Fig. 5, is 'a plan view of the mechanism shown in Fig. 4; and Fig. 6, is a perspective view of the fork against which the knot is drawn.

While I have shown my improvements in connection with a machine forweaving the heading and tying the knots, it will be understood that the invention may be used in connection with a machine in which the knots are tied, the heading being previously woven on another machine.

In order to avoid confusion and to simplify the description, I will briefly allude to those parts of the machine which have direct bearing upon my invention, as the general construction of the machine to which my invention is applied is fully set forth in the above mentioned patent.

Referring to Fig. l, 1 is the frame; on this frame are the guides for the warp threads 3 which form the heading. These threads pass through the harness frames 4 and the reed 5. The weft strand 2 not only'forms with the warps the heading of the fringe but forms the strands which are knotted; the weft strand is drawn by the hook 6 which is provided with a knife for cutting the looped weft strand when it is of the proper length. The heading passes under a clamp plate 7 while the strands are pushed by fingers 9 on the reed rock shaft 10 into position to be engaged by the rotating feed screw 11.v The screw separates the strands ends of the strands pass over a platform 13 directly back of the screw 11 and above this platform is a rotary brush 14 which draws out the strands, placing sufficient tension on them so that the screw will positively feed them forward and the knotting mechanism will properly tie the knots.

15 is'the collector hook which is moved so as to collect the first and fourth strand which in the present instance form the knot as clearly shown in Fig. 2. These strands are moved into position to be engaged by the hooked needle 16 which is moved-up with the open side toward the strands and after engaging the strands the needle is turned .half round to twist the strands around its shank and form a loop. The end of the loop holder 17 engages thestrands and prevents thembeing carried up by the needle as it continuesits forward movement. The free end of the strands are then engaged by a clamp hook 18 having a spring clamp plate 19 mounted thereon. The free ends of the strands are held by the hook 18 and are carried by it across the shank of the needle 16 and laid in'the hookof thecneedle which has been turned to place the hook upward. The needle '16 is retracted, drawing the free 7 ends of the strandsout of the clamp'hook 18 and through theformed loop. A clamping device 41 is then moved laterally in contact with the needle so as to bear upon the free end of'the strand so that thestrand is held firmly by the needle in its downward movement, insuring theknot being drawn tight.

I 20 is the knot placing pin which enters the loop of the knot and acts as the form onto which the knot is drawn. 7 This pin is withdrawn at' the last of the knottying process. While this pin was originally intended to place the knots sothat thel would all be the same distance "from the heading, I find that the knot is liable to slip off of the pin before 'it is completely formed and, therefore, some of the knots aredrawn so as to be a greater distance from the heading than others. One object of my invention is to provide means for overcoming this defect. This I accomplish by engaging the knotby a 6 0 and draws them under a bar 12 while the i forked stop 21. The forks pass up on each side of the strand beyond the knot so that on the continued movement of the needle 16 the knot is drawn tightly against the fork 21 and when the pin 20 is withdrawn, the knot cannot move from its place back of the fork, so that the tying of the knot is completed and the alinement of the knots is assured. As soon as the knot is completed the fork 21 is withdrawn and the knotted strands are moved out of the path of the needles by the hook 22.

l Vhile I have omitted from the drawings the unnecessary driving mechanism of some of the parts, I will describe that part of the driving gear which actuates the mechanism embodying my improvements.

42 is the main shaft of the machine, which is geared to the shaft 23, which drives the knotting mechanism and this shaft is in turn geared tothe cam shaft 24. On this cam shaft is acam 25 for operating the lever 26 carrying the clamp hook 18 and also on this shaft is a cam 27 which actuates the lever 28 carrying the fork 21. This fork, in the present instance, is made, as clearly shown in Fig. 6, and is slotted at 29 for the reception of a clamp bolt 30 on an arm 31 attached to one arm of the lever 28. The cam is so located that after the knot has been formed and before it is drawn the fork is raised to position in. front of the knot so as to prevent its longitudinal movement when the strands are drawn.

The needle 16 is actuated through a shaft 32 geared to the shaft 24 and on the shaft is a cam33 which reciprocates the said needle 16. The knot placing pin 20 is carried by an arm 34 of a rock shaft mounted in bearings on the frame of the machine. A cam 41-3 on the shaft 32 rocks the shaft through the lever 44 and rod 45 and longitudinal movement is imparted. to the shaft by a cam 35 on the shaft 24. Thus, the desired motion is imparted to the pin 20. The collecting hook 15 is mounted on one arm of the lever 36 actuated by suitable cam mechanism. The withdrawing hook 6 is carried by an arm 37 operated by mechanism similar to the mechanism of the above described patent. In fact, the mechanism for operating the reed the selecting hook or needle, the clamp hook, andthe knot placing pin, as well as the collecting hook, are substantially similar to the mechanism illustrated in said Arnold Patent, No. 451,441, and I mount a cam 27 as above described on the shaft 24 for operating the forked stop for limiting the longitudinal movement of the knot. The feed screw 11 is mounted on a shaft 38 and the brush 14 is mounted on a shaft 39. These shafts are geared together and to a short shaft l0, which in turn is geared to the cam shaft 24 by bevel gearing.

By the above description it will be seen knots.

The operation of the machine is as follows :-The warp threads are fed in the manner clearly shown in Fig. 1, and the weft thread is drawn across the warps by the hook 6. When the weft threads are drawn to a certain extent they are cut so as to form independent strands which are to be knotted. The fingers 9 then push the loose strands into the path of the feed screw 11 and the ends travel on the platform 13 and are drawn out by the brushes 1 1, keeping each strand in its respective groove. The rod 12 bears upon the strands in front of the screw but does not bear against the screw, u

thus insuring each strand following its own groove. The collecting hook 15 then selects the two strands which are to be knotted and draws them into the path of the needle 16; the needle being turned so that its hook will engage the strands. The needle is then turned to a position with the hook uppermost and the clamp hook 18 engages the strands beyond the needle and draws the strands back to form the loop, the free ends of the strands entering the hook of the nee dle, while the loop holder 17 retains the loop in position as illustrated in Fig. 3. The placer pin 20 is then inserted in the loop of the knot and as the needle 16 recedes it contacts with the clamping device 41 preventing the strands from accidently slipping out of the hook until the proper time, thus forming the knot and as the knot is formed the forked member 21 is raised in front of the knot and straddles the free ends of the strands, positively locating the knot a given distance from the heading, after which the operation is repeated.

By the use of a platform directly back of the screw and the location of the brush above the platform, I am enabled to retain the strands within their respective grooves of the screw without the brush bearing directly upon the strands within the grooves of the screw, obtaining a much better result as the bearing for the strands on the platform is extended and sufficient tension is applied to the strands. Furthermore, by locating the bar 12 so that it will be clear of l the screw, it is not roughened by the scraping of the screw against it and consequently the fibers of the strands are not broken as heretofore.

Prior to my invention the grooves of the screw were made shallow and the brush entered these grooves, keeping the strands taut, a bar being placed to contact with the screw so as to insure the strands remaining 1n the grooves, but, as remarked above, this i bar would, in many instances, be roughened by the action of the screw and would break the strands.

By providing the clamp hook 18 with :1 fiat spring clamp plate 19, I avoid the use of a swinging plate actuated by independent mechanism, thus simplifying the construction and perfecting the clamp.

The mechanism, as now constructed, makes a perfect knot and the knots are equi-distant from the heading and there is no cutting or injury of the fibers of the strands as heretofore.

I claim:

1. The combination in a machine for tying knots in fringe, of means for holding the heading; mechanism for forming a knot in the strands of the fringe including the placer pin which is inserted in the loop of the knot; a device bearing on the outside of the knot for stopping the longitudinal movement thereof as the strand is drawn to close the knot; and means for drawing the strand.

2. The combination in a machine for tying knots in fringes, of means for holding afringe heading, a knot tying mechanism for tying knotsin the loose strands projecting from the heading, a forked device arranged to straddle the free ends of the strands and to engage the knot, and means for actuating the forked device to position it directly in front of the knot so as to limit the movement of the knot as the strands are drawn to complete the closing of the knot.

' 3. The combination in a machine for making a fringe, of means'for feeding the warp into the machine, a rock shaft, reed mechanism thereon, a feed screw for carrying the loose strands forward with the heading, fingers on the reed rock shaft for carrying the strands to the feed screw, a hook located between the reed and the screw for drawing the weft strands, means in the hook for out ting the strands, a brush and a platform-located back of the feed screw for placing tension on the strands, knotting mechanism, means engaging the outside of the knot as it is formed so that all the knots willbe the same distance from the heading, and mech-' anism for actuating the several means.

In'testimony whereof, I have signed my name to this specification, in the presence of two subscribing witnesses.

WILLIAM E. BRAssELn,

Witnesses:

WILLS A. Bunnowns, WM. A. BARR.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. G. 

